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3. The lowest point in Death Valley is 85.0 m below sea level. The summit of nearby Mr. Whitney has an elevation of 4420 m

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3. The lowest point in Death Valley is 85.0 m below sea level. The summit of nearby Mr. Whitney has an elevation of 4420 m above sea level. What is the change in gravitational potential energy of an energetic 65.0 kg hiker who makes it from the floor of Death Valley to the top of Mr. Whitney? (answer: 2.87 x 10' J)

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